title: Glycoconjugate heterogeneity among five strains of Mycoplasma gallisepticum.
abstract: Five strains of Mycoplasma gallisepticum (MG) were examined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and Western blot analysis for the presence of carbohydrate-containing components. Staining with periodic acid-Schiff (PAS) demonstrated carbohydrate components in three of the five strains studied. The PAS-reactive bands counterstained for protein, indicating a possible glycoprotein nature. Western blot analysis using three biotinylated lectin probes demonstrated the presence of additional glycoconjugates in the blot profiles of each MG strain. The carbohydrate specificity of lectin binding was demonstrated by competition experiments using specific sugars. Differences in the number, electrophoretic mobility and the morphology of PAS and lectin reactive bands were reproducible among separate preparations of each MG strain. These findings indicate substantial phenotypic diversity among the five MG strains in their ability to produce or acquire glycoconjugates.
authors.affiliation: Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison 53706.
authors.forename: C B
authors.initials: CB
authors.lastname: Thomas
authors.forename: P
authors.initials: P
authors.lastname: Sharp
mesh_terms: D000818:Animals; D015153:Blotting, Western; D050260:Carbohydrate Metabolism; D004591:Electrophoresis, Polyacrylamide Gel; D006001:Glycoconjugates / Q000032:analysis*; D037102:Lectins / Q000378:metabolism; D009174:Mycoplasma / Q000032:analysis*; D010503:Periodic Acid-Schiff Reaction; D010641:Phenotype
chemical_list: D006001:Glycoconjugates; D037102:Lectins